The mother of all cluster rings. The scale of this might not be obvious from the photos, but it’s massive: at least twice the size of a typical Edwardian cluster ring. I don’t buy a lot of 1950s rings, but this one is made just like an Edwardian cluster ring, with hand-cut filigree and bead set diamonds. It might even pass for that era, except that it’s HUGE. The diameter is 22mm, or about 7/8 inch.